Oil burner



ve?? ford fea l E R E 0 5 c m Ou 2 2 2 J F B .w m u? /mnl m@ c o .w s u l F II. i` F ,tl

Sept. l, 1925.

Patented Sept. l, 1925.

UNITED STATES,- rmx semina, :moins la rAnnnN, Ann our e. smvnn'rson, or carcasa, rm.:- Noraassieuons, nv nmnc'r Nn nissan Assremlnurs, or 01m-namrosen:

.PATENT OFFICE. l

SCHAFEB AND ONE-HALF T FRANK I. TUD, i v

l on. nomma..

appndauon nea-reuma e, '1924. 116.690,990.

ing at Chicago, in the county of Cook and State of Illinois, have invented certain new'4 and useful Improvements in Oil Burners, of which the followin is a specification.

This invention re ates to an o1l burner-pnmarily adapted for use in connectlon with house heating furnaces, and the. Ob]ect of the invention is to provide a simpllfied tyipe of burner which may be readily and quie y applied to the lire grateof an ordinary furnace, and which operates un er avity feedwithout objectionable noise an W1thout the accumulation of soot which impairs the operation of such typesof burners now in common use.` 1

The invention also relates to the means provided for adjustin the relatlon of the `various portions of t e appliance toward and from one another in'order to yadapt the burner to the local conditions encountered, tothe means 4provided for delivering air 1n such a way as to insure an adequate supply for purposes of combustion, tol the means for so delivering the oil that it w1ll remain in liquid form until it is delivered to the point of combustion, to the automatic means for guarding the'burner against' an overflow of liquid oil, and to the general combmatlon and arrangement of parts hereinafter de-4 scribed and claimed.'

In lthe drawing:

Figure 1 is a sectional nace of conventional type showing the burner of the present invention applied thereto;

Fig. 2 is a view taken on line 2-2 of Fi 1; and

lig. 3l is a sectional view ofa modified form of burner'bowl.' L The burner of the presentinvention is applied to a furnace having a grate 11 of anv suitable form, upon the vcenter of which grate is located .`a bowl 12 which may be of a straight conical form,I as shown 1n Flg.

, 1, or may be additionally provided with upstanding sides 12, as shown in Fig. 3, or of other uivalent shape adapted to pro vide in its ottom an annular reservoir for a small supply of oil.

elevation of a fur- The bowl of whatsoever sha in its center` with an air sup l); opening 13 around which the edge of the bowl is upturned to form a lip 14, which. lip in conis provided` junction with the surrounding conical wall affords an annular channel within which a small supply of oil may accumulate. Through the air passage 13 is entered-the stem 15 of a deiecting plate 16,'which plate is spaced a short distance above thelI upper y edge of the lip 14, the size of the late being lip and serves to deect oil admittedfrom such that its outer edge projects yond the.

above outwardly against e the heated walls of the bowl 12. It 1s preferred to have the upper. surface 17 of the deflecting plate slightly rounded orof-conical formation in or er to better deflect the oil outwardly toward the surrounding walls of the bowl. It is also preferred to provide the under surface of the deiecting plate with 4a non-conducting facing 18 of asbestos or similar heat resisting material.

Immediately above the center of the defleeting plate .is located the .lower end of an oil discharge tube 19, which tube at its upper end is threaded onto an oil supply pipe 2O which terminates in a nipple 21 of suitable size, larranged to feed oil into the discharge tube 19. dA jamb nut 22 is provided to hold the' discharge-tube 19 in adjusted relation with respect to the deflecting plate. The supply pipe 20, forms a continuation of a delivery ipe 23 which `leads' to any suitably located) reservoir for the supply of oil.

The tube 19 at a point somewhat above the level of the defiecting p vided with exteriorscrew t reads 24 which furnish a mounting for a baffle plate 25 which preferably extends be ond the periphery of the oil bowl 12 an fleet the flameoutwardlyA and away from the discharge tube 19, so that the latter will not become excessively heated when in use. The baille plate 25 is vertically adjustable upon the discharge tube, so that it may be positioned to co-act most' eifectively with the bowl 12. ,A y

In order to guard against a flooding of the bowl in case the flame is extinguished,'the bowl has leading therefrom an overflow pipe 26 which leads to a float housing 27 withm which is located a float 28 mounted upon a late 16 is pro;y

nol

serves to dev ther supply of oil.

the arrangement being such that when the l voveriiowin yoil risesV -tol 'a predeterminedl oint within-the iioat housing, the oat will Ee raised and the valve closed agalnst a fur- -The stem near 1ts lower end is provided with rack teeth 33 which mesh with a pinion 34'mounted upon an` adjusting rod 35 which extends to any convenient point to permit the-rod to be rotated andthe baffle plate adjusted to the desired de ee. The st em, as shown, is guidedvat its ower end within a socket 36 and at its u er end within a s ider or bracket 37 vwhic serves to ide` t e stem without interfering with the miiow of 8.11'. In order to direct all of the air throu h the opening 13, the fire box, exterior of t e oil bowl, is packed and closed by clay, cinders, or other suitable packing 38, so that al1 the air admitted to t e fire chamber will pass through the center opening 13 andimpinge against the under surface of the deiecting plate. .I

In use, after the oil has been turned-into the pipe 23, it will fall through the nipple 21 and the discharge tube 19 and against the deiiecting late 16 over which it. will run until a limited supply has accumulated within the oil bowl. Thereafter the oil is ignited either directly or by means 'of a small quantity of aper or waste laid within the o1l bowl and)A ignited. As soon as the oil begins to burn it will tendy to heat the flaring walls of the Aoil bowl to a high temperature and at the same time the ame will be directly outwardly, awa from the deflecting plate and under the rim of the overhanging baiiie plate. .As soon as the walls of the oil bowl become heated, the oil iiowing over the rim of the `deiiecting'plate will impinge against the highly heated surface of the bowl, thereby volatilizing the oil at this point with the result that after the burner has gotten well started, the oil will be entirely volatilized at the point of combustion around and below the edge of the deflecting plate. The air rushing through the center opening 13 will impinge against the under surface'of the deiiecting plate, and will diverge outwardly to commingle with the volatilized oil, ,so Athat a thorou h and complete combustion will be promoted.

The deiiecting plate not only serves to deflect both the oil and the air outwardly, but also servesto prevent excessive heating of the oil dischar e tube 19 which is further protected by t e creation of a draft outwardly around the baiie plate 25, so that the oil supply tube will remainvcomparatively cool and prevent volatilization. of the 011 within the tube. At the same time the oil falling through the tube will be warmed sufficiently to promote volatilization when the proper point has been reached.

If, for. any cause, the ame should be extin ished, or if the oil supply pipe should accidentally be left open, the oil will con.- tinue to laccumulate within the bowl until .the'level of the overflow pipe 26 is reached after which .a further accumulation of oil will quickly raise the"l float and close the automatic valve against further discharge. '75

The apparatus is one` which may be readily installed in any furnace of standard construction, and the several parts being mutually adjustable, can be easily regulated to v secure the best co-action. Experiencehas shown that the burner operates to produce a most complete-and satisfactory combustion without the accumulation of carbon even though oils of very cheap grade arev employed. In some cases, it may be found de- 85 sirable to more closely confine the iame, in which case, a bowl of the general shape illustrated in Fig. 3 may be employed.

Although the invention has been described .with partlcularity, it is not the "intention to limit the invention to the use of a bowl of precisely the shape and form shown, since modiications thereof* may be utilized without departingpfrom the spirit of the invention.

We claim: v y ,l

1. In an oil burner, in combination with a furnace grate, a bowl-like member provided with a central air discharge aperture and affording in its lower portion'a surrounding 100 oil reservoir, a deflecting plate' adjustable mounted above said aperture and in spaced relation theretov and extendin beyond the margin of said aperture and a apted to dis-- charge oil against the walls of said bowl- 105 like member at a point above the portion thereof which constitutes the reservoir, a centrally disposed oil discharge tube located above said deiiecting plate in position tov allow oil to impinge thereon, a baiiie plate 110 vertically adjustably mounted u on said oil discharge tube vand having its rim extended beyond the rim of said bowl-like member .in position todivert the flame outwardly and away from-the oildischarge tube member, substantially as described.

2. In an oil burner, in combination with a furnace grate,` a bowl-like member seated upon-said grate and provided with a central aperture having an upturned lip to afford an annular oil reservoir, a deiiecting plate vlocated above said aperture and extending outwardly beyond the li thereof, and adapted to deflect oil outward y against the unsubmerged upper wall of the bowl- 125 like member, an adjustable stem upon which said delectingplate is mounted, said stem extending through the air aperture, an oil dlschar e tube located and terminating` above t e deflecting lplate and adapted to cause oill to impinge thereon, and a baffle plate adjustably mounted4 upon the oil discharge tube, substantially as described.

3. In an oil burner, the combination with a furnace' grate, a bowl-like member provided with an upwardly opening air discharge aperture constituting the sole source of' air supply, the bowl-like member affording in its lower portion a reservoir surrounding the air discharge aperture, la flattened deflecting plate mounted above said aperture and in spaced relation thereto and to the walls of the bowl-like member and extending beyond the margin of' said aperture and adapted to discharge oil outwardly beyond its rim and against the walls of said bowl-like member at a point above the portion thereof which constitutes the reservoir, a centrally disposed oil discharge tube located above said defiecting plate in position to allow oil to impinge thereon, a baiile plate vertically adjustably mounted upon said oil discharge tube and having its rim extended beyond the rim of said bowl-like member in position to divert the flame outwardly and away from the oil discharge tube, substantially as described.

4. In an oil burner, the combination withl a furnace grate, a bowl-like member provided with an upwardly opening air dis-- char e aperture, the bowl-like member affordlng in its lower portion a reservoir surrounding the air discharge aperture, a flattened downwardly sloping deflecting plate mounted above said aperture andl in spaced relation thereto and to the walls of the'bowllike member and extending beyond the margin of said aperture and adapted to discharge oil outwardly beyond its rim and against the walls of said bowl-like member at a point above the portion thereof which constitutes the reservoir, a centrallyT disposed oil discharge tube located above said defiecting .plate in position to allow oil to impinge thereon, a baffle plate vertically' adjustably mounted upon said oil discharge tube and having its rim extended beyond the rim of said bowl-like member in' position to divert the flame outwardly vand away described.

from the oil discharge tube, substantially as` 5. In an oil burner, the combination with a furnace grate, a bowl-like member provided with a central upwardly opening air discharge aperture constituting the sole source of air supply, the bowl-like member affording in its lower portion a reservoir surrounding the air discharge aperture, a flattened downwardly sloping deflecting plate mounted above said aperture and in spaced relation thereto and to the Walls of the bowllike member and extending beyond the margin of said aperture and adapted to discharge oil outwardly beyond its rim and against the walls of said bowl-like member at a pointabove the portion thereof which constitutes the reservoir, a centrally disposed oil discharge tube located above said deflecting plate in position to allow oil to impinge thereon, a baliie plate vertically adjustably mounted upon said oil discharge tube and having its rim extended beyond the riml of said bowl-like member in position to divert the flame outwardly and away from the oil discharge tube, substantially as described.

6. In an oil burner, the combination with a furnace grate, a bowl-like member provided with an upwardly opening air discharge aperture, the bowl-like member affording in its lower portion a reservoir surrounding the air discharge aperture, a flattened deflecting plate mounted above said aperture and in spaced relation thereto and to the wallsu of the bowl-like member and extending beyond the margin of sald aperture and adapted to discharge oil outwardly beyond its rim and against the walls of said bowl-like member at a point above the portion thereof `which constitutes the reservoir, an oil discharge tube located above said defleeting plate in position to allow oil to impinge thereon, a baliie plate surrounding said oil discharge tube and having its rim ex- FRANK SCHAFER. THOMAS E. PADDEN. Q p K OLAF G. SIEVERTSON. 

